f clarify comment more

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -943,7 +943,7 @@ pub(crate) const IDEMPOTENCY_TIMEOUT_TICKS: u8 = 7;
 const MAX_UNFUNDED_CHANS_PER_PEER: usize = 4;
 
 /// The maximum number of peers from which we will allow pending unfunded channels. Once we reach
-/// this many peers we reject new (inbound) channels.
+/// this many peers we reject new (inbound) channels from peers with which we don't have a channel.
 const MAX_UNFUNDED_CHANNEL_PEERS: usize = 50;
 
 /// The maximum number of peers which we do not have a (funded) channel with. Once we reach this